package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;


@Mapper
public interface ShoppingCartMapper {
    /**
     * 动态条件查询
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list (ShoppingCart shoppingCart);

    /**
     * 根据id修改商品数量
     * @param shoppingCart
     */
    @Update("update shopping_cart set number=#{number} where id=#{id}")
    void updateNumberById(ShoppingCart shoppingCart);

    /**
     * 添加购物车商品
     * @param shoppingCart
     */
    @Insert("insert into  shopping_cart (name,image, user_id, dish_id, setmeal_id,number, dish_flavor, amount,create_time) VALUES " +
            "(#{name},#{image},#{userId},#{dishId},#{setmealId},#{number},#{dishFlavor},#{amount},#{createTime})")
    void install(ShoppingCart shoppingCart);

    /**
     * 清空购物车
     * @param userId
     */
    @Delete("delete  from  shopping_cart where user_id=#{userId}")
    void deleteByUserId(Long userId);
}
